Teeeitoey



(No Model.)

J. K. LOWE, G. M. WE'STGATE 8v J. BANKS.

MECHANICAL MOVEMENT.

N0. 309,634. Patented Dec. 23, 1884.

WITNESSES DIVENTOR m... gi w s N TEES. Phblnhlhogmphur. wnshi unu. 11C.

NITED STATES Erica A'rE r JAMES KNOX LOWE, GEORGE MILTON VVESTGATE, AND JOHN BANKS, OF

\ LOGAN CITY, ARIZONA TERRITORY.

MECHANICAL MOVEMENT.

. SPECIFICATION forming part of Letters Patent No. 309,634, dated December 23, 1884. Application filed September 30, 1884. (No model.)

To all whom it may concern Be it known that we, JAMES KNOX LOwE, GEORGE MILTON WEsTGA'rE, and JOHN BANKS, of Logan City, in the county of Pima and Territory of Arizona, have invented a new and Improved Mechanical Movement, of

' which the following is a full, clear, and exact description.

This invention relates to the trammel Or slotted disk movement for converting rotary into reciprocating movement; and the invention consists, principally, in such construction of the slotted disk that a small ball or circular plate may be used for bridging the cross 1 heads across the slots.

The invention also consists of the special construction of the trammel or slotted disk, and the cross-heads and wrist-pins, all as h ereinafter described and claimed.

Reference is to be had to the accompanying drawings, forming part of this specification,

.in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a broken front elevation of my invention. Fig. 2 is a full front elevation of the same, and Fig. 3 is a sectional plan view.

The disk or trammel A has the slots a a cut in it, which cross each other at right angles in the center of the trammel, and in these 0 slots are placed the cross-heads b b, that are pivoted to the connecting-rod B in the ordinary way. The slots to a reach entirely through the trammel A, and the pins 0 c, that pivot the cross-heads b to the rod B, reach entirely 5 through the crossheads and the trammel and have the small anti-friction wheels 0 c placed upon them, which run in the slots, and thus diminish the friction of the movement. A circular chamber, 0, is formed in the center of the trammel A to receive the small ball or 0 circular plate d, which, as the trammel revolves, drops into the slots a just before the cross-heads I) cross the intersection of the slots,

so that the ball or plate (1 causes the crossheads to cross the slots without friction and 5 without danger of binding or the pivot-pins catching in the slots.

In use the trammel A will be revolved by power applied to the shaft A, so that the rod 13 will receive two full reciprocations for every full revolution of the tranimel. 7

Having thus described our invention, what we claim as new, and d esire to secure by Letters Patent, is-- 1.. The trannnel A, chambered at the inter- 5 5 section of the slots a to receive a ball or disk for bridging the cross-heads across the slots, substantially as described.

2. The traminel A, chambered at O, in combination with the ball or circular plate 61 and cross-heads b, substantially as and for the purposes set forth.

JAMES KNOX LOWE. GEORGE MILTON wEsToATE. JOHN BANKS.

\Vitnesses:

CHARLES DEIsooLL, HENRY SCHAFER, MIOHAEL SPENCER. 

